Patents by Inventor Lauri Martti

Lauri Martti has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5121919
    Abstract: A game playing device comprising a play panel (1); a launching device (8) for launching a coin or the like token (3) into the play panel; and a primary game playing apparatus (4) having an actuator (5) disposed in the play panel on the paths of movement of the tokens, the actuator detecting the passing of tokens therethrough for controlling a prize delivering machinery (7). In order to make the game more versatile and interesting, the game playing device is provided with an additional game playing apparatus in addition to the primary game playing apparatus and corresponding additional actuator (14) detecting the passing of the tokens therethrough and controlling the starting of the operation of the additional game playing apparatus.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: June 16, 1992
    Assignee: Raha-Automaarriyhdistys
    Inventor: Lauri Martti
  • Patent number: 4487414
    Abstract: A slot machine or coin operated prize dispensing apparatus comprising a vertical gambling panel which forms a plane of movement for coins or similar flat, rolling tokens and which is provided with a plurality of prize sensors located in the plane of movement, a projector adjacent the plane of movement, a stake inserting slot, and a pay-out mechanism. A closed circulating path for projected coins is formed in the plane of movement of the gambling panel and passes adjacent the projector. The stake inserting slot is connected past the gambling panel to the pay-out panel by means of a separate circulating path for stake coins. Thus, the projected coins are independent of the number, value and combination of the stake coins so that the game can be priced and the prize relation changed without touching the projected coins.
    Type: Grant
    Filed: January 7, 1983
    Date of Patent: December 11, 1984
    Assignee: Raha-Automaattiyhdistys
    Inventors: Martti K/a/ rkk/a/ inen, Lauri Martti
  • Patent number: D277768
    Type: Grant
    Filed: May 18, 1982
    Date of Patent: February 26, 1985
    Assignee: Raha-Automaattiyhdistys
    Inventors: Martti I. Karkkainen, Lauri Martti